I wanted to make a database available to a colleague but in read-only form. I tried to do this by sharing the .accdb file with him via OneDrive, unticking the "Allow editing" box in the process. He found, however, that he was able to edit the database though the changes he made did not appear when I looked at it later. The implication is that I have, in fact, created a second, independent copy of the database. Is there an alternative procedure which will enable me to achieve my desired end?